LiftMaster 050ACTWFATS ATSW Receiver Logic Board Technical Details
The LiftMaster 050ACTWFATS receiver logic board is a replacement control board for select ATSW and ATS commercial series Wi-Fi chain drive door operators. It is commonly associated with post-2018 operator generations using myQ Wi-Fi capability and a yellow learn button.
This board should be matched carefully because similar LiftMaster logic boards can differ in radio technology, connector layout, software generation, and learn button color.
What This Part Does
The logic board manages operator control, accessory inputs, radio receiver functions, travel behavior, and Wi-Fi/myQ related functions on compatible ATSW/ATS door operators.
- Replaces a failed compatible receiver logic board
- Addresses radio receiver or control-board faults after diagnosis
- Used on select ATSW and ATS Wi-Fi chain drive door operators
- Supports yellow learn button myQ Wi-Fi operator generations
- Requires reprogramming after replacement
Compatible With
Used with select LiftMaster ATSW and ATS commercial series Wi-Fi chain drive door operators manufactured after 2018 where the parts diagram calls for 050ACTWFATS.
- Select ATSW commercial / residential style Wi-Fi chain drive door operators
- Select ATS commercial series Wi-Fi chain drive operators
- Post-2018 yellow learn button myQ Wi-Fi configurations
- Applications where the original board number and connector layout match 050ACTWFATS
Important Compatibility Warning
Do not order by board appearance alone. Similar LiftMaster boards may use different radio frequency, learn button color, firmware, connector locations, or operator family compatibility. A surge-damaged board can also be accompanied by damaged accessories or wiring.
Similar Parts That Are Not Automatically Interchangeable
- Non-Wi-Fi ATS boards without matching part number
- Security+ 2.0 boards from unrelated garage opener families
- Commercial door logic boards for LGO, GH, T, J, or H operators
- Gate operator control boards
- Boards with different learn button color or connector layout
Not Intended For
- Repairing a mechanical door problem or broken spring
- Bypassing photo eyes, edge sensors, or door safety devices
- Correcting bad accessory wiring without diagnosis
- High-voltage service by unqualified personnel
Features and Specifications
| Specification |
Details |
| Brand |
LiftMaster |
| Part Number |
050ACTWFATS |
| Store ID |
LM-050ACTWFATS |
| Product Type |
Receiver logic board |
| Operator Family |
Select ATSW and ATS Wi-Fi chain drive operators |
| Learn Button Reference |
Yellow learn button on compatible units |
| Connectivity |
myQ Wi-Fi capable systems |
| Post-Replacement Steps |
Program remotes, keypads, limits, travel, force, and Wi-Fi as needed |
Also Known As / Related Part Numbers
- 050ACTWFATS
- LM-050ACTWFATS
- ATSW logic board
- ATS Wi-Fi receiver logic board
- Yellow learn button receiver board
Related Parts and Service Checks
- Confirm the board number before ordering
- Check the opener model and production generation
- Inspect accessory wiring for shorts before installing a new board
- Check surge damage on connected controls
- Confirm remotes and keypads will need programming
- Run safety reversal and door travel tests after replacement
Technician Note
A bad wall control, shorted accessory wire, or power surge can damage a new board if the cause is not corrected first. Inspect the low-voltage wiring before installing the replacement.
Before Ordering Checklist
- Confirm part number 050ACTWFATS
- Confirm ATSW or compatible ATS operator model
- Verify yellow learn button and myQ Wi-Fi generation
- Compare connector layout to the original board
- Plan for programming remotes, keypads, travel, force, and Wi-Fi
Installation and Service Notes
Disconnect power before servicing the operator. Transfer wiring carefully and verify each connector by location and function, not just by wire color.
After replacement, program controls and perform required travel, force, photo eye, and safety reversal tests before returning the door to use.
Professional Advisory
Commercial and residential door operators can create serious hazards if safety systems are not tested after board replacement. If the wiring or setup is unclear, use a qualified garage door technician.
Product Questions & Answers
What operators use the 050ACTWFATS board?
It is used on select LiftMaster ATSW and ATS Wi-Fi chain drive door operators where the parts diagram calls for 050ACTWFATS.
How can I identify this board family?
It is commonly associated with myQ Wi-Fi capability and a yellow learn button on compatible post-2018 ATSW/ATS operator generations.
Will my remotes still work after replacing the board?
Remotes and keypads may need to be programmed again after board replacement. Wi-Fi setup may also need to be repeated.
Can this board replace any LiftMaster logic board?
No. Similar boards can have different radio technology, connector layout, software generation, and operator compatibility.
What should be checked before installing a new board?
Check accessory wiring, wall controls, photo eyes, power, surge damage, and the original board number before installing the replacement.
Do safety tests need to be done after replacement?
Yes. Travel, force, photo eyes, and safety reversal functions should be tested before the door is returned to service.
